acupunture causing nerve damage?

I've been getting acupuncture to treat my lower back pain. At my last treatment the doctor placed a needles at several locations on my legs and back.

The needle behind my right knee caused pain upon insertion and a lot of pain when he manipulated it. He took the needle out and replaced it and it appeared to be fine. Also the needle in my right ankle caused discomfort.

Shortly after the treatment I experianced pain at both sites and some odd sensations in my right foot (warmth and numbness). The doctor (who is an MD as well as an acupuncturist)said it was nothing to be concerned about.

Has anyone had acupuncture cause nerve damage in such a way? The literature says it can cause "nerve damage" but no specifics are mentioned as to symptoms or location of needles.

Yes it is my friend I went to ONE of these wackos once and that was enough. He put one in my neck and it killed well he hit a nerve and now my neck is screwed but I stopped going to them idiots and going to massagers instead and the gym I did exercises to start kicking my neck back in and now my neck is awesome. For lower back do some back exercises and start slow and see a massager. eventually you will notice your back becoming better and the muscle will get huge.